I've spent time in Northern Minnesota, which is along the way from Fargo, and, yes, User1314 has it right. Swedes, Norwegians and Finns. Although the Finns are a little different. People say 'Oh, now, he's Finnish, that man', and there is sage nodding all round. 'Oh, right, yaaah, he's Finnish' they say.
All of which may have nothing to do with the drink problems in that part of the world. If you go there, I'd limit the amount of time you spend on the roads in the late evening.